When your tongue is shitty because you have said some disagreeable or annoying things. What you call someone after they have said something stupid or pointless or aggravating.
Leizel: "I heard that if you eat more than two twinkies a day you will be obese by age 23"
Michelle: "Shut up you shit tongue"
Michelle: "Shut up you shit tongue"
by Dr. Hull MD March 31, 2009